import Vue from 'vue'
import Router from 'vue-router'
import routes from './routers'
import iView from 'iview'
import { getToken, setTitle, turnAccessRoute, getRoutes } from '@/libs/util'
import config from '@/config'
const { homeName } = config

Vue.use(Router)

const router = new Router({
  routes,
  mode: 'history'
})

const LOGIN_PAGE_NAME = 'login'

const turnTo = (to, from, next) => {
  const originalRoutes = getRoutes()
  if (turnAccessRoute(to.name, routes)) {
    console.log(5555555)
    next()
  } else {
    if (to.name === 'home' && !originalRoutes.includes('home')) {
      next({ name: originalRoutes[0] })
    } else {
      next({ replace: true, name: 'error_401' })
    }
  }
}

router.beforeEach((to, from, next) => {
  iView.LoadingBar.start()
  const token = getToken()

  if (!token && to.name !== LOGIN_PAGE_NAME) {
    // 未登录且要跳转的页面不是登录页
    next({
      name: LOGIN_PAGE_NAME // 跳转到登录页
    })
  } else if (!token && to.name === LOGIN_PAGE_NAME) {
    // 未登陆且要跳转的页面是登录页
    next() // 跳转
  } else if (token && to.name === LOGIN_PAGE_NAME) {
    // 已登录且要跳转的页面是登录页
    next({
      name: homeName // 跳转到homeName页
    })
  } else {
    turnTo(to, from, next)
  }
})

router.afterEach(to => {
  setTitle(to, router.app)
  iView.LoadingBar.finish()
  window.scrollTo(0, 0)
})

export default router
